Display device

ABSTRACT

A disclosed display device comprises a display panel having a display area configured to display an image. The display panel includes in the display area a plurality of data lines extending in a first direction, a plurality of gate lines extending in a second direction and crossing the data lines, and a plurality of pixels defined by the data lines and the gate lines, and arranged in a plurality of rows and a plurality of columns. The display device further comprises at least one gate in panel (GIP) circuit disposed in the display area and having a plurality of signal lines and a plurality of transistors each respectively disposed between two adjacent columns of the pixels among the columns.

CROSS-REFERENCE TO RELATED APPLICATION

The present invention claims the benefit of Korean Patent ApplicationNo. 10-2015-0190179 filed in the Republic of Korea on Dec. 30, 2015,which is hereby incorporated by reference in its entirety.

BACKGROUND

Field of the Disclosure

The present disclosure relates to a display device, and moreparticularly, to a display device having a narrow bezel.

Discussion of the Related Art

A display device, such as a liquid crystal display (LCD) device,typically includes a display panel, a data driving circuit for providingdata signals to data lines of the display panel, a gate driving circuitfor providing gate signals to gate lines of the display panel, and atiming controller for controlling the data driving circuit and the gatedriving circuit.

In a typical LCD device, the gate driving circuit and the data drivingcircuit may be in an integrated circuit form and attached to the displaypanel in a TCP (tape carrier package) or COF (chip on film) form.

Therefore, as the number of components increases, and manufacturingprocesses and costs also rise due to an increase in the number ofcomponents, it may be more difficult to decrease the weight and size ofthe LCD device. To solve this problem, a GIP (gate in panel) type LCDdevice, in which the gate driving unit is formed in the display panel,has been suggested.

FIG. 1 is a plan view of a display panel of a related art GIP type LCDdevice. As shown in FIG. 1, a display panel 10 of the related art GIPtype LCD device includes a display area AA and non-display areas NAA.The non-display areas NAA are disposed at outer sides of the displayarea AA, for example, at left and right sides of the display area AA,respectively.

Here, pixels P defined by gate lines GL and data lines DL crossing eachother are disposed in the display area AA of the display panel 10, andGIP circuits each including signal lines (not shown) and transistors(not shown) are disposed in the respective non-display areas NAA.

As part of developing lighter and thinner LCD devices for use in finalproducts like monitors or TVs with slimmer designs, efforts have beenmade to narrow the bezel, which is defined as a width of a non-displayarea NAA. However, as stated above, in the related art GIP type LCDdevice, since the GIP circuits GIP each having the signal lines (notshown) and the transistors (not shown) are formed in the non-displayareas NAA at left and right sides of the display area AA, respectively,there is a limitation on narrowing the bezel.

SUMMARY

Accordingly, the present disclosure is directed to display device thatsubstantially obviates one or more of the problems due to limitationsand disadvantages of the related art.

An object of the present disclosure is to provide a display device thathas a narrow bezel by disposing signal lines and transistors of GIPcircuits within a display area of a display panel.

Additional features and advantages of the invention will be set forth inthe description which follows, and in part will be apparent from thedescription, or may be learned by practice of the invention. Theobjectives and other advantages of the invention will be realized andattained by the structure particularly pointed out in the writtendescription and claims hereof as well as the appended drawings.

To achieve these and other advantages and in accordance with the purposeof the present disclosure, as embodied and broadly described herein, adisplay device comprises: a display panel including a display area and anon-display area, the display panel including in the display area m/2data lines extending in a first direction, m being a positive evennumber, 2n gate lines extending in a second direction and crossing thedata lines, n being an integer greater than or equal to 5, and aplurality of pixels defined by the data lines and the gate lines, andarranged in n rows and m columns; and at least one gate in panel (GIP)circuit disposed in the display area and having a plurality of signallines and a plurality of transistors each respectively disposed betweentwo adjacent columns of the pixels among the m columns.

In another aspect, a display device comprises: a display panel having adisplay area configured to display an image, the display panel includingin the display area a plurality of data lines extending in a firstdirection, a plurality of gate lines extending in a second direction andcrossing the data lines, and a plurality of pixels defined by the datalines and the gate lines, and arranged in a plurality of rows and aplurality of columns; and at least one gate in panel (GIP) circuitdisposed in the display area and having a plurality of signal lines anda plurality of transistors each respectively disposed between twoadjacent columns of the pixels among the columns.

It is to be understood that both the foregoing general description andthe following detailed description are exemplary and explanatory and areintended to provide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the invention and are incorporated in and constitute apart of this specification, illustrate example embodiments of theinvention and together with the description serve to explain theprinciples of the invention. In the drawings:

FIG. 1 is a plan view of a display panel of a related art GIP type LCDdevice;

FIG. 2 is a plan view of a display panel of a GIP type display deviceaccording to an example embodiment of the present invention;

FIG. 3 is a schematic view illustrating a plurality of GIP circuitsaccording to the example embodiment of the present invention;

FIG. 4 is a view schematically illustrating an example of the first GIPcircuit shown in FIG. 3 according to the example embodiment of thepresent invention; and

FIG. 5 is a view of a display panel including GIP circuits in a displayarea according to an example embodiment of the present invention.

DETAILED DESCRIPTION

Reference will now be made in detail to the embodiments of theinvention, examples of which are illustrated in the accompanyingdrawings.

FIG. 2 is a plan view of a display panel of a GIP type display device,such as a GIP type LCD device, according to an example embodiment of thepresent invention. As shown FIG. 2, the display panel 100 of a GIP typedisplay device according to the example embodiment of the presentinvention includes a display area AA configured to display an image andnon-display areas (not shown) at outer sides of the display area AA.

More specifically, a plurality of pixels (not shown), which are definedby a plurality of gate lines GL1 to GL6 and a plurality of data lines(not shown) crossing each other, are disposed in the display area AA ofthe display panel 100. Particularly, a plurality of GIP circuits GIP1 toGIP6, each of which includes a plurality of signal lines (not shown) anda plurality of transistors (not shown), are disposed in the display areaAA of the display panel 100.

In the example embodiment of the present invention, a narrower bezel canbe achieved by disposing the GIP circuits GIP1 to GIP6 in the displayarea AA, compared to the related art LCD device shown in FIG. 1 in whichthe GIP circuits are disposed in the non-display areas NAA at the leftand right sides of the display area AA. This will be described below inmore detail.

In the display device according to the example embodiment, although moregate lines and GIP circuits may be disposed in the display area AA ofthe display panel 100, for convenience of explanation, six gate linesGL1 to GL6 and six GIP circuits GIP1 to GIP6 are shown in FIG. 2.

Odd-numbered GIP circuits GIP1, GIP3, and GIP5 may output gate signalsto odd-numbered gate lines GL1, GL3, and GL5, respectively, andeven-numbered GIP circuits GIP2, GIP4, and GIP6 may output gate signalsto even-numbered gate lines GL2, GL4, and GL6, respectively.

Although not shown in the drawings, a data driving unit (not shown) maybe further disposed in the non-display area (not shown), for example, atan upper or lower side of the display area AA. The data driving unit(not shown) may output data signals to the data lines (not shown) in thedisplay area AA.

FIG. 3 is a schematic view illustrating a plurality of GIP circuitsaccording to the example embodiment of the present invention. As shownin FIG. 3, the GIP circuits GIP1, . . . , GIP(i−1), GIP(i), GIP(i+1), .. . , and GIP(j) may respectively output gate signals Vout1, . . . ,Vout(i−1), Vout(i), Vout(i+1), . . . , and Vout(j), each of which hasone high level pulse during a single frame, wherein i is an integerlarger than 2, and j is an integer larger than 4.

The first to the j-th GIP circuits GIP1 to GIP(j) each may receive atleast one of a plurality of clock signals CLK1 and CLK2, and maysequentially output the gate signals Vout1, . . . , Vout(i−1), Vout(i),Vout(i+1), . . . , and Vout(j) having the one high level pulse to thegate lines GL1, . . . , GL(i−1), GL(i), GL(i+1), . . . , and GL(j),respectively, wherein i is an integer larger than 2, and j is an integerlarger than 4.

In addition, each of the clock signals CLK1 and CLK2 may partiallyoverlap the next clock signal, and the clock signals CLK1 and CLK2 maysequentially and repeatedly be applied to the GIP circuits GIP1, . . . ,GIP(i−1), GIP(i), GIP(i+1), . . . , and GIP(j). For example, each of theclock signals CLK1 and CLK2 may overlap ⅔ of a high level section of thenext clock signal. Here, although two clock signals CLK1 and CLK2 areused in this example for illustrative purposes, a different number ofclock signals, for example, three, four, or more, may be employed.

The gate signals Vout1, . . . , Vout(i−1), Vout(i), Vout(i+1), . . . ,and Vout(j), which are respectively outputted from the GIP circuitsGIP1, . . . , GIP(i−1), GIP(i), GIP(i+1), . . . , and GIP(j), aresequentially provided to the gate lines GL1, . . . , GL(i−1), GL(i),GL(i+1), . . . , and GL(j) of a display panel (not shown) to displayimages.

More specifically, for example, the first GIP circuit GIP1 may outputthe first gate signal Vout1 having the high level to the first gate lineGL1, the (i−1)-th GIP circuit GIP(i−1) may output the (i−1)-th gatesignal Vout(i−1) having the high level to the (i−1)-th gate lineGL(i−1), the i-th GIP circuit GIP(i) may output the i-th gate signalVout(i) having the high level to the i-th gate line GL(i), the (i+1)-thGIP circuit GIP(i+1) may output the (i+1)-th gate signal Vout(i+1)having the high level to the (i+1)-th gate line GL(i+1), and the j-thGIP circuit GIP(j) may output the j-th gate signal Vout(j) having thehigh level to the j-th gate line GL(j).

First, since there is no preceding GIP circuit before the first GIPcircuit GIP1, the first GIP circuit GIP1 cannot receive a gate signal ofthe preceding GIP circuit as a starting signal to start. Thus, the firstGIP circuit GIP1 may receive a start signal Vst and start.

Accordingly, the start signal Vst may be applied to the first GIPcircuit GIP1, and the first GIP circuit GIP1 may then output the firstgate signal Vout1 of the high level using the first clock signal CLK1.Subsequently, the (i−1)-th gate signal Vout(i−1) of the high leveloutputted from the (i−1)-th GIP circuit GIP(i−1) may be provided to thei-th GIP circuit GIP(i) to start the i-th GIP circuit GIP(i), and thei-th GIP circuit GIP(i) may output the i-th gate signal Vout(i) of thehigh level using the second clock signal CLK2. Although the second clocksignal CLK2 is used in the example of FIG. 3, the first clock signalCLK1 or another clock signal may be used.

Next, the i-th gate signal Vout(i) of the high level outputted from thei-th GIP circuit GIP(i) may be provided to the (i+1)-th GIP circuitGIP(i+1) to start the (i+1)-th GIP circuit GIP(i+1), and the (i+1)-thGIP circuit GIP(i+1) may output the (i+1)-th gate signal Vout(i+1) ofthe high level using the first clock signal CLK1. Although the firstclock signal CLK1 is used in the example of FIG. 3, the second clocksignal CLK2 or another clock signal may be used instead. This processmay continue sequentially until the j-th GIP circuit GIP(j) outputs thej-th gate signal Vout(j) of the high level using the second clock signalCLK2. Again, although the second clock signal CLK2 is used in theexample of FIG. 3, the first clock signal CLK1 or another clock signalmay be used.

When the j-th gate signal Vout(j) is outputted from the j-th GIP circuitGIP(j) where one frame ends, the j-th GIP circuit GIP(j) may receive areset signal Rst and be initialized such that the first gate signalVout1 may be outputted from the first GIP circuit GIP1 when the nextframe starts.

FIG. 4 is a view schematically illustrating an example of the first GIPcircuit G1P1 in FIG. 3 according to the example embodiment of thepresent invention. As shown in FIG. 4, the first GIP circuit GIP1 mayinclude a control circuit 110 to control a first node Q and an outputcircuit 120 to output the first gate signal Vout1 corresponding to thefirst clock signal CLK1 depending on a voltage state at the first nodeQ.

Here, the control circuit 110 may control the voltage state of the firstnode Q such that the first gate signal Vout1 corresponding to the firstclock signal CLK1 is outputted from the output circuit 120. To do this,the control circuit 110 may include a first transistor T1 connectedbetween a start signal (Vst) input terminal and the first node Q, and asecond transistor T2 connected respectively to the first node Q, asecond gate signal Vg2 input terminal, and a low level voltage VSS inputterminal.

Here, the drain and the gate of the first transistor T1 may be connectedto each other, and the first transistor T1 may function as a diode. Thatis, a voltage at the drain of the first transistor T1 may be inputted tothe source, but a voltage at the source may not be inputted to thedrain. Therefore, the first transistor T1 may apply the start signal Vstto the first node Q and, at the same time, prevent a voltage charged atthe first node Q from being discharged to the outside through the firsttransistor T1.

In addition, the second transistor T2 may initialize the first node Q.At this time, the second transistor T2 may be turned on by the secondgate signal Vg2 and charge the first node Q with the low level voltageVSS. Accordingly, the first node Q can be charged again by the startsignal Vst of a high level at the start of the next frame.

The output circuit 120 outputs the first gate signal Vout1 at a highvoltage level or at a low voltage level depending on the voltage stateof the first node Q. To do this, the output circuit 120 may include (a)a third transistor T3 connected to a first clock signal CLK1 inputterminal, the first node Q, and a first gate signal Vout1 outputterminal, (b) a fourth transistor T4 connected to a second clock signalCLK2 input terminal, the low level voltage VSS input terminal, and thesource of the third transistor T3, (c) a fifth transistor T5 connectedto the drain of the third transistor T3 and the first gate signal Vout1output terminal, and (d) a capacitor C connected between the first nodeQ and the source of the third transistor T3.

The third transistor T3 may be turned on by a high level voltage chargedat the first node Q and output the first gate signal Vout1 correspondingto a high level of the first clock signal CLK1.

Additionally, the first gate signal Vout1 may be inputted to the secondGIP circuit GIP2 (not shown) as a starting signal for the second GIPcircuit GIP2. Then, the second GIP circuit GIP2 may output the secondgate signal Vg2. Moreover, the second gate signal Vg2 may be inputted tothe second gate signal Vg2 input terminal, and the second transistor T2may be turned on by the second gate signal Vg2, whereby the first node Qis charged by the low level voltage VSS.

Furthermore, the source and gate of the fifth transistor T5 may beconnected to each other, and the fifth transistor T5 may function as adiode. Accordingly, the fifth transistor T5 may turn on if the highlevel of the first clock signal CLK1 is applied to the gate of the fifthtransistor T5 as the third transistor T3 is turned on by a high levelvoltage charged at the first node Q. The fifth transistor T5 may turnoff if the low level voltage VSS is applied to the gate of the fifthtransistor T5.

In addition, the capacitor C may be charged by a voltage level of thestart signal Vst when the start signal Vst of the high level is inputtedto the gate of the first transistor T1 and the first transistor T1 turnson.

Then, when the capacitor C is charged with a voltage higher than athreshold voltage between the gate and source of the third transistor T3and the first clock signal CLK1 is at a high level, bootstrappingoccurs. A voltage larger than the high level of the start signal Vst maybe charged at the first node Q, and the voltage of the first node Q maydefinitely be high. Thus, the third transistor T3 may turn on.

Moreover, the fourth transistor T4 may be turned on by the second clocksignal CLK2 and output the low level voltage VSS to the first gatesignal Vout1 output terminal. At this time, the first node Q may becharged with the low level voltage VSS by the second transistor T2turned on by the second gate signal Vg2, the third transistor T3 mayturn off, and an initialization may be accomplished.

The above processes may be repeatedly performed by the first GIP circuitGIP1 at each frame. Also, similar processes may be sequentiallyperformed by the succeeding GIP circuits GIP2 to GIP(j), respectively,in each frame.

FIG. 5 is a view of a display panel including GIP circuits in a displayarea according to an example embodiment of the present invention.

In the display area AA of the display panel 100, m/2 data lines (m is apositive even number) extending in a first direction and 2n gate lines(n is an integer greater than or equal to 5) extending in a seconddirection may cross each other to define m×n pixels, and 2n GIP circuitsmay be disposed. For convenience of illustration and discussion, thesecond to the seventh gate lines GL2 to GL7, the first to the fifth datalines DL1 to DL5, and one GIP circuit are shown in the FIG. 5. In thisexample, for illustrative purposes, the GIP circuit corresponds to thesixth GIP circuit GIP6 of FIG. 2, wherein i is 6. The other GIP circuitsmay be disposed in the display area in a similar manner.

As shown in FIG. 5, two columns of pixels may be disposed between twoadjacent data lines among the first to the fifth data lines DL1 to DL5.Two of the second to the seventh gate lines GL2 to GL7 may be disposedbetween two adjacent rows of pixels.

In addition, each pixel may include a pixel electrode P and a thin filmtransistor Tr. A data signal from one of the first to the fifth datalines DL1 to DL5 may be provided to two adjacent columns of pixels, withthe one of the first to the fifth data lines DL1 to DL5 therebetween.

There is no data line between the columns of two pixels disposed betweentwo adjacent data lines among the first to the fifth data lines DL1 toDL5. As shown in FIG. 5, for example, such signal lines as CLK1, CLK2,VSS, Vst, and Rst, shown in FIGS. 3 and 4, and transistors T1 to T5,shown in FIG. 4, included in the GIP circuit may respectively bedisposed between two adjacent columns of pixels where there is no dataline.

Namely, the display device according to example embodiments of thepresent invention may utilize areas between columns of pixels where thedata lines DL1 to DL5 are not disposed in the display area AA.Accordingly, since it is not necessary to provide for an additional areafor such signal lines as CLK1, CLK2, VSS, Vst, and Rst of FIGS. 3 and 4,and the transistors T1 to T5 of FIG. 4 in the display area AA, adecrease in the aperture ratio of the LCD device can be prevented ormitigated.

The signal lines CLK1, CLK2, VSS, Vst, and Rst may respectivelycorrespond to the first and second clock signal lines CLK1 and CLK2, alow level voltage line VSS, a start signal line Vst, and a reset signalline Rst, as shown for example in FIGS. 3 and 4.

In addition, the GIP circuit may further include a first node line QL,corresponding for example to node Q in FIG. 4, and a second node line(not shown), as well as additional node lines. Each of the first nodeline QL, the second node line, and any additional node lines may bedisposed between two adjacent rows of pixels.

The signal lines CLK1, CLK2, VSS, Vst, and Rst may extend in the samefirst direction, and may be formed of a same material on a same layer,as the data lines DL1 to DL5.

Moreover, the first node line QL, and the second and any additional nodelines may extend in the second direction, for example in the samedirection as the gate lines GL2 to GL7. If the first node line QL andthe second node line are spaced apart from the gate lines GL2 to GL7,the first node line QL and the second node line may be formed of thesame material on the same underlying layer as the gate lines GL2 to GL7.Alternatively, if the first node line QL and the second node lineoverlap the gate lines GL2 to GL7, the first node line QL and the secondnode line may be formed of a different material on a differentunderlying layer from the gate lines GL2 to GL7.

Furthermore, the transistors T1 to T5 may correspond to the first to thefifth transistors T1 to T5, as shown for example in FIG. 4. Morespecifically, the gate and drain electrodes of the first transistor T1may be connected to the fifth gate line GL5, and the source electrode ofthe first transistor T1 may be connected to the first node line QL.Accordingly, the first transistor T1 may receive a gate signal suppliedfrom the fifth gate line GL5 as a starting signal and input it to thefirst node line QL.

With respect to the first GIP circuit GIP1, as shown for example in FIG.3, there is no preceding GIP circuit. Unlike in the sixth GIP circuitGIP6, shown for example in FIG. 5, the first transistor T1 of the firstGIP circuit GIP1 of FIG. 3 cannot receive a gate signal outputted fromthe preceding GIP circuit as a starting signal to start. Thus, the gateelectrode of the first transistor T1 of the first GIP circuit GIP1 ofFIG. 3 may be connected to the start signal line Vst of FIG. 3 andreceive a start signal supplied from the start signal line Vst of FIG. 3to start.

In addition, as in the first GIP circuit GIP1, the gate and drainelectrodes of the first transistor T1 of the sixth GIP circuit GIP6 maybe connected to each other, and the first transistor T1 may function asa diode. Accordingly, a voltage charged at the first node line QL isprevented from being discharged to the outside through the firsttransistor T1.

Moreover, a drain electrode of the second transistor T2 may be connectedto the first node line QL, a source electrode of the second transistorT2 may be connected to the low level voltage line VSS, and a gateelectrode of the second transistor T2 may be connected to the seventhgate line GL7. Accordingly, the second transistor T2 may be turned on bya gate signal supplied from the seventh gate line GL7 and input a lowlevel voltage supplied from the low level voltage line VSS to the firstnode line QL. In this manner, the GIP circuit may be prepared for thenext frame by having the first node line QL charged with the low levelvoltage.

Additionally, a source electrode of the third transistor T3 may beconnected to the sixth gate line GL6, a drain electrode of the thirdtransistor T3 may be connected to the first clock signal line CLK1, anda gate electrode of the third transistor T3 may be connected to thefirst node line QL. Accordingly, the third transistor T3 may be turnedon by a high level voltage charged at the first node line QL and outputa gate signal corresponding to the clock signal supplied from the firstclock signal line CLK1 to the sixth gate line GL6.

As discussed above, if the first node line QL is charged with the lowlevel voltage by the second transistor T2 turning on, the thirdtransistor T3 turns on, and the initialization may be accomplished.

In addition, a gate electrode of the fourth transistor T4 may beconnected to the second clock signal line CLK2, a source electrode ofthe forth transistor T4 may be connected to the low level voltage lineVSS, and a drain electrode of the fourth transistor T4 may be connectedto the sixth gate line GL6 and the source electrode of the thirdtransistor T3. Accordingly, the fourth transistor T4 may be turned on bya clock signal supplied from the second clock signal line CLK2 andoutput the low level voltage supplied from the low level voltage lineVSS to the sixth gate line GL6.

Moreover, a drain electrode of the fifth transistor T5 may be connectedto the first clock signal line CLK1, and a gate electrode and a sourceelectrode of the fifth transistor T5 may each be connected to the sixthgate line GL6 and the source electrode of the third transistor T3.Accordingly, the fifth transistor T5 may be turned on by a clock signalsupplied from the first clock signal line CLK1 and output a gate signalcorresponding to the clock signal to the sixth gate line GL6. The fifthtransistor T5 may be turned off by the low level voltage supplied fromthe low level voltage line VSS and output the low level voltage to thesixth gate line GL6.

The gate and source electrodes of the fifth transistor T5 may beconnected to each other, and the fifth transistor T5 may function as adiode.

Although, for convenience of illustration and discussion, an example ofthe sixth GIP circuit GIP6 disposed in the display area AA andconfigured to output a gate signal to the sixth gate line GL6 isdiscussed above, other GIP circuits may output gate signals to therespective gate lines in substantially the same manner as discussedabove.

Hereinafter, example arrangement structures and connection relations ofthe first to the fifth transistors T1 to T5, the signal lines CLK1,CLK2, and VSS connected to the first to the fifth transistors T1 to T5,and the first node line QL will be explained with reference to FIG. 5.

First, since the sixth GIP circuit GIP6 is configured to output a gatesignal to the sixth gate line GL6, the first to the fifth transistors T1to T5 (for example as shown in FIG. 3) of the sixth GIP circuit GIP6 maybe disposed between the fifth gate line GL5 and the sixth gate line GL6.

For example, the first transistor T1 may be disposed at the left side ofthe first column of pixels connected to the first data line DL1, thesecond transistor T2 may be disposed between two adjacent pixels in therow direction located between the fourth and the fifth data lines DL4and DL5, the third transistor T3 may be disposed between the twoadjacent pixels in the row direction located between the first and thesecond data lines DL1 and DL2, the fourth transistor T4 may be disposedbetween the two adjacent pixels in the row direction located between thethird and the fourth data lines DL3 and DL4, and the fifth transistor T5may be disposed between the two adjacent pixels in the row directionlocated between the second and the third data lines DL2 and DL3. Thefirst to the fifth transistors T1 to T5 may be disposed at differentlocations within the display area AA, for example between two adjacentpixels in the row direction where no data line is disposed.

Also for example, the first clock signal line CLK1 may be disposedbetween the two columns of pixels located between the first and thesecond data lines DL1 and DL2, and also between the two columns ofpixels located between the second and the third data lines DL2 and DL3.The first clock signal line CLK1 may be disposed at different locationswithin the display area AA, for example between two columns of pixelswhere no data line is disposed. The first clock signal line CLK1 may beconnected to the third and the fifth transistors T3 and T5.

Moreover, the second clock signal line CLK2 may be disposed between thetwo columns of pixels located between the third and the fourth datalines DL3 and DL4, and may be connected to the fourth transistor T4. Thesecond clock signal line CLK2 may be disposed at different locationswithin the display area AA, for example between two columns of pixelswhere no data line is disposed.

Furthermore, the low level voltage line VSS may be disposed at the rightside of the pixel column located at the right side of the fifth dataline DL5. The low level voltage line VSS may be disposed at differentlocations within the display area AA, for example between two columns ofpixels where no data line is disposed. The low level voltage line VSSmay extend parallel to and between the fourth and the fifth gate linesGL4 and GL5, and may be connected to the second and the fourthtransistors T2 and T4.

Additionally, the first node line QL may be disposed parallel to andbetween the sixth and the seventh gate lines GL6 and GL7, and may beconnected to the first, second, and third transistors T1, T2, and T3.

In the above example embodiment, two clock signals are used. However,the number of the clock signals is not limited to this example, andadditional clock signals may be employed.

In addition, the gate line from which the first transistor T1 receivesthe starting signal and the gate line from which the second transistorT2 receives the gate signal to turn on may be changed. For example, wheneight clock signals are used, the first transistor T1 may receive thestarting signal from the (i−4)-th gate line GL(i−4), and the secondtransistor T2 may receive the gate signal of the (i+4)-th gate lineGL(i+4) to turn on. That is, if i is 6, the gate electrode of the firsttransistor T1 may be connected to the second gate line GL2, and the gateelectrode of the second transistor T2 may be connected to the tenth gateline GL10.

The gate electrode of the first transistor T1 of each of the first tothe fourth GIP circuits GIP1 to GIP4 may be connected to the startsignal line Vst, for example as shown in FIG. 3. The gate electrode ofthe second transistor T2 of each of the (j−3)-th to the j-th GIPcircuits GIP(j−3) to GIP(j) may be connected to the reset signal lineRst, for example as shown in FIG. 3.

In the manner discussed above in connection with example embodiments, anarrow bezel can be implemented in a display device by disposing suchsignal lines as CLK1, CLK2, VSS, Vst, and Rst (as shown for example inFIGS. 3 and 4) and the transistors T1 to T5 of the GIP circuits (asshown for example in FIG. 4) in the display area AA, instead of thenon-display areas NAA at the left and right sides of the display area AAshown in FIG. 1.

In addition, since the signal lines CLK1, CLK2, VSS, Vst, and Rst, andthe transistors T1 to T5 of the GIP circuits may be formed concurrentlyfrom the same respective materials on the same respective underlyinglayers as the data lines DL1 to DL5, the gate lines GL2 and GL7, and thethin film transistors Tr of the pixels, the manufacturing processes maybe simplified, and the manufacturing costs may be lowered.

It will be apparent to those skilled in the art that variousmodifications and variations can be made in the display device of thepresent invention without departing from the spirit or scope of theinvention. Thus, it is intended that the present invention cover themodifications and variations of this invention provided they come withinthe scope of the appended claims and their equivalents.

What is claimed is:
 1. A display device, comprising: a display panelincluding a display area and a non-display area, the display panelincluding in the display area: m/2 data lines extending in a firstdirection, m being a positive even number; 2n gate lines extending in asecond direction and crossing the data lines, n being an integer greaterthan or equal to 5; and a plurality of pixels defined by the data linesand the gate lines, and arranged in n rows and m columns; and at leastone gate in panel (GIP) circuit disposed in the display area and havinga plurality of signal lines and a plurality of transistors eachrespectively disposed between two adjacent columns of the pixels amongthe m columns, wherein a first GIP circuit among the at least one GIPcircuit is configured to output a gate signal to a first gate line, thefirst GIP circuit including: a first transistor connected to a startsignal line and a first node line; a second transistor connected to thefirst node line and a low level voltage line; a third transistorconnected to a first clock signal line and the first node line; a fourthtransistor connected to a second clock signal line, the low levelvoltage line, and the third transistor; and a fifth transistor connectedto the first clock signal line and the third transistor, wherein a gateelectrode and a source electrode of the fifth transistor are connectedto each other.
 2. The display device of claim 1, wherein two of the gatelines are disposed between two adjacent rows of the pixels among the nrows, and wherein two of the columns of pixels are disposed between twoadjacent data lines among the data lines.
 3. The display device of claim1, wherein odd-numbered GIP circuits among the at least one GIP circuitare configured to output gate signals to odd-numbered gate lines amongthe gate lines, and even-numbered GIP circuits among the at least oneGIP circuit are configured to output gate signals to even-numbered gatelines among the gate lines.
 4. The display device of claim 1, whereinthe signal lines extend in the first direction and are disposed on asame underlying layer as the data lines.
 5. The display device of claim1, wherein the signal lines include one or more of: the first and secondclock signal lines, the start signal line, a reset signal line, and thelow level voltage line.
 6. The display device of claim 5, wherein thefirst GIP circuit further includes the first node line and a second nodeline disposed between two adjacent rows of pixels among the n rows. 7.The display device of claim 6, wherein the first and the second nodelines extend in the second direction, are spaced apart from the gatelines, and are disposed on a same underlying layer as the gate lines. 8.The display device of claim 6, wherein at least one of the first and thesecond node lines overlaps one of the gate lines in plan view and isdisposed on a different underlying layer from the gate lines.
 9. Thedisplay device of claim 1, further comprising a data driving circuitdisposed in the non-display area and configured to output data signalsto the data lines.
 10. The display device of claim 1, wherein a drainelectrode of the fifth transistor is connected to the first clock signalline, and the gate and source electrodes of the fifth transistor areconnected to a source electrode of the third transistor.
 11. A displaydevice, comprising: a display panel having a display area configured todisplay an image, the display panel including in the display area: aplurality of data lines extending in a first direction; a plurality ofgate lines extending in a second direction and crossing the data lines;and a plurality of pixels defined by the data lines and the gate lines,and arranged in a plurality of rows and a plurality of columns; and atleast one gate in panel (GIP) circuit disposed in the display area andhaving a plurality of signal lines and a plurality of transistors eachrespectively disposed between two adjacent columns of the pixels amongthe columns, wherein a first GIP circuit among the at least one GIPcircuit is configured to output a gate signal to a first gate line, thefirst GIP circuit including: a first transistor connected to a startsignal line and a first node line; a second transistor connected to thefirst node line and a low level voltage line; a third transistorconnected to a first clock signal line and the first node line; a fourthtransistor connected to a second clock signal line, the low levelvoltage line, and the third transistor; and a fifth transistor connectedto the first clock signal line and the third transistor, wherein a gateelectrode and a source electrode of the fifth transistor are connectedto each other.
 12. The display device of claim 11, wherein the displaypanel further includes a non-display area outside the display area, andwherein the display device further comprises a data driving circuitdisposed in the non-display area and configured to output data signalsto the data lines.
 13. The display device of claim 11, wherein two ofthe gate lines are disposed between two adjacent rows of the pixelsamong the rows, and wherein two of the columns of pixels are disposedbetween two adjacent data lines among the data lines.
 14. The displaydevice of claim 11, wherein the signal lines extend in the firstdirection and are disposed on a same underlying layer as the data lines.15. The display device of claim 11, wherein the signal lines include oneor more of: the first and second clock signal lines, the start signalline, a reset signal line, and the low level voltage line, and whereinthe first GIP circuit further includes the first node line and a secondnode line disposed between two adjacent rows of pixels among the rows.16. The display device of claim 15, wherein the first and the secondnode lines extend in the second direction, are spaced apart from thegate lines, and are disposed on a same underlying layer as the gatelines.
 17. The display device of claim 15, wherein at least one of thefirst and the second node lines overlaps one of the gate lines in planview and is disposed on a different underlying layer from the gatelines.
 18. The display device of claim 11, further comprising aplurality of GIP circuits each disposed in the display area andconfigured to output a gate signal to a respective one of the gate linessequentially.
 19. The display device of claim 11, wherein the first GIPcircuit is configured to output the gate signal to the first gate linesto activate one of the rows of pixels.
 20. The display device of claim11, wherein a drain electrode of the fifth transistor is connected tothe first clock signal line, and the gate and source electrodes of thefifth transistor are connected to a source electrode of the thirdtransistor.